Garry’s Mod is one of the most classic HL2 experiences you can find, without having to play the original game of course. But if you want to truly experiment and have fun with this sandbox, you might ...
But not so fast, Ridey McRail. The rollercoaster add-on isn't compatible with the retail version of Garry's Mod, which you might have picked up during its Steam Flash Sale - where it was reportedly ...
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